Mascaras are used to thicken, lengthen, color, curl, and provide volume to eyelashes which helps accentuate the appearance of eyes. Currently marketed mascaras include water-resistant, waterproof, and volumizing types, formulated as oil in water, water in oil, and anhydrous formulations.
Waterproof formulations normally are water in oil or anhydrous formulations which require an oil-based cleanser for removal. They also tend to dry very slowly, making them prone to smudging until the film is dry to the touch.
By far the most common type of mascara formulation currently sold is a lamellar gel network (LGN) based oil in water emulsion, stabilized using soluble polymers. These formulations are quite versatile and can provide good application, functional performance, wear/wash resistance, and rapid drying.
Typically, these compositions are comprised of:
Material type and quantity | Ingredients |
Water as a carrier | |
Volatile solvents
(0-10 percent) |
Ethanol
Isododecane Cyclopentasiloxane |
LGN emulsifiers
(4-8 percent)
|
Palmitic, Stearic, Isostearic, or Oleic acid neutralized using Triethanolamine, Tromethamine or Aminomethyl Propanediol
Potassium Cetyl Phosphate Steareth 20/21 Ceteareth 20 Glyceryl Stearate/Behenate Cetyl alcohol Myristyl alcohol Stearyl alcohol |
Waxes
(3-8 percent)
|
Carnauba
Synthetic Wax Beeswax Polyethylene |
Pigment
(5-10 percent)
|
black
russet umber iron oxides carbon black some coated versions are also used |
Film formers/waterproofing polymers (1-5 percent solids)
|
Acacia Senegal Gum
Ammonium Acrylates Copolymer Acrylates Copolymer Acrylates/Styrene/Ammonium Methacrylate Copolymer PVP VP/Eicosene Copolymer Ethylenediamine/Stearyl Dimer Dilinoleate Copolymer Ammonium Acrylates Copolymer Polyethylene |
Humectants
(1-5 percent) |
Propanediol
Butylene Glycol |
Preservatives/Potentiators
(.5-1.5 percent)
|
Phenoxyethanol
Caprylyl Glycol Hexanediol Pentylene Glycol Ethylhexylglycerin Disodium/Trisodium EDTA Sodium Dehydroacetic acid |
Dispersing agents
(0-1 percent) |
Lecithin
Sodium Polymethacrylate Sodium Polyacrylate |
Emulsion stabilizers
(.2-1 percent) |
Xanthan gum
Hydroxyethylcellulose Magnesium Aluminum Silicate |
Lash lengthening fibers/volumizing powders
(0-3 percent) |
Nylon 6
Rayon
|
Mascara emulsifiers
The most common emulsifying systems are fatty acid soap-based systems using Palmitic, Stearic, Isostearic or Oleic acid. These types of formulations have been popular for over 60 years.
Fatty acid soaps act as the high hydrophilic-lipophilic balance (HLB) LGN emulsifiers to help swell commonly used low HLB emulsifiers such as:
- excess fatty acid (not neutralized)
- Steareth 2
- Glyceryl Stearate
- Glyceryl Behenate
- Cetyl
- Myristyl
- Stearyl alcohol
Other high HLB non-soap emulsifiers used include Potassium Cetyl Phosphate, Ceteareth 20, Steareth 20/21 and PEG 200 Glyceryl Stearate. These emulsions typically aren’t stable unless a water-soluble polymer like Xanthan gum or Hydroxyethylcellulose is added.
The role of waxes
The primary role of waxes is to increase the thickness of the product film on lashes to help provide volume. Typical waxes used include:
- Carnauba
- Synthetic Wax
- Polyethylene
- Hydrogenated Jojoba/Palm Oil
- Beeswax
- Paraffin
Mascara pigments
The most common pigments used in mascara formulations are black, yellow, and red iron oxides. Other pigments are normally added to the water phase with a dispersing agent prior to emulsification, and include:
- Ultramarines
- Titanium Dioxide
- Carmine
- Chromium Oxide Greens
- Chromium Hydroxide Green
- Manganese Violet
- Ferric Ferrocyanide
- D&C Black No2 (carbon black)
Mascara film formers
Film formers used include water soluble/dispersible and oil soluble polymers. Key properties are the ability to form fast drying, flexible, non-tacky, wash/wear resistant films that contract when dry to help curl and provide lift to the lash. They also help prevent the waxes from flaking off of the lash. Representative water soluble/dispersible polymers used include:
- Acacia Senegal Gum
- Shelac
- Ammonium Acrylates Copolymer
- Acrylates Copolymer
- PVP
- Polyurethane 35
- Polyvinyl Alcohol/Acetate
Representative oil soluble polymers include:
- VP/Eicosene Copolymer
- Behenyl Methacrylate/T-Butyl Methacrylate Copolymer
- Pentaerythrityl Hydrogenated Rosinate
- Acrylates/Octylacrylamide Copolymer
Often several different types of polymers are used together in formulations to provide the optimal film forming effects. These can include mixtures of water soluble/dispersible polymers and oil-soluble polymers.
Incorporating effective pigment dispersing agents is important to get good color development and uniform coverage. Typical ingredients used include Lecithin, Sodium Polymethacrylate and Sodium Polyacrylate. Lash lengthening/volume building fibers frequently used include Nylon 6 and Rayon.
Mascara preservatives
Preserving mascara formulations can be quite challenging since the wand/brush, which is used to apply product, goes back into the tube when done. This can contaminate remaining product with micro-organisms. If inadequately preserved, contaminated product can cause eye infections and subsequent product recalls.
Consequently, most marketed formulations from major companies are well-preserved and extensively tested to avoid problems. I also recommend doing an in-use consumer test and doing microbiological testing at the finish of the test. Frequently used preservatives and potentiators include combinations of Phenoxyethanol, Caprylyl Glycol, Ethylhexyl Glycerin, Pentylene Glycol, 1,2 Hexanediol, Disodium/Trisodium EDTA and Sodium Dehydroacetic acid.
Mascara packaging
Mascara packaging is an important factor that controls performance. The wand design is critical to achieving optimal mascara performance since it controls the amount of product applied, speed of drying, and assists in separating/coating individual lashes during product application. Different designs should always be evaluated whenever new formulations are developed. I believe that the wand design is probably one of the biggest factors in determining mascara performance since most marketed formulations are technically very similar.
Further reading:
- Lamellar Gel Network Technology: A Primer
- From the Bottom Up: Contemporary Foundation Formulations
- A Touch of Color: Historical and Contemporary Lipstick Formulation
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fantastic article, so informative and helpful, thank you
Hi, very informative and helpful article, thank you. I have a question and hoping that Mr. Deckner can help, what natural preservative can be used for a mascara formulation when it is quite susceptible to contamination when the product is being used as stated in the article? Thank you.
Jeff,
I would use .05% Sodium Phytate as a chelator, 2% Pentiol Green + (Pentylene Glycol- Minsolve), 1% Sharon Biomix Pure 1 (Sharon Labs). This is 100% natural
George Deckner
Very comlplete and helpful article, thank you.
I was missing any clays in your formulation. WHY?
Thank you.
Hi, very informative and helpful article, thank you. I have a question and hoping that Mr. Deckner can help, what is chemical formula of mascara? Thank you.
The typical formulation is
Water
Volatile solvent (0-10%)
Emulsifier (2-6%)
Waxes (3-8%)
Pigment (3-10%)
Film formers (1-5% solids)
Humectants (1-5%)
Preservatives (.5-1.5%)
Waterproofing aids (0-2% solids)
Dispersing agents (0-1%)
Lash lengthening fibers (0-5%)
Volumizing powders (0-3%)
How to make maskara waterproff any one chemical for it plz reply.
Ganex V220 (Ashland) is commonly used.
Hi, can you describe what makes the formulae of so called “tubing” mascaras distinct? Consumer sources describe these as special polymers, but the ingredients don’t seem unique. Thanks!
Tubing mascaras use water dispersible, flexible polymers to coat each individual lash to maximize even the smallest lashes on your lash line. Examples include
Ammonium Acrylates Copolymer
Acrylates Copolymer
Acrylates/Styrene/ Ammonium Methacrylate Copolymer
Acrylates/Ethylhexyl Acrylate Copolymer (and) Laureth-50 (and) Aqua
Acrylates/Ethylhexyl Acrylate Copolymer
Dear George Deckner
I formulated a good mascara (volumizing, lengthening and curling) but it gets dried in the tube after four or five days. What can I do to prevent this problem?
this could be mainly due to your packaging but also formulation.
You probably need a better package. Put your filled tube at 45C and check for weight loss.
Thank you for the reply. I’m using the same package for another formulation and had no problem. I also have done weight loss test for the package and got no problem. I need to adjust the formulation but do not know what to do!!!
The package weight loss is less than 1%/month at 45C. I probably have problem in the formula. I’m using Stearic acid and Glyceryl monostearate as emulsifier and 2% TEA for neutralizing Stearic acid and film former.
It sounds like your formulation viscosity is thickening over time not drying out, This problem is caused by your emulsifying system not being balanced. Without seeing your formulation I can not make specific recommendations,
Hi love the article. I been working on my own mascara brand and wanted to know why the formula doesn’t add up to 100%? Not sure if its a requirement. Another can i use glycerin as a preservative only? And can i use sunflower lecithin as an emulsifier and antioxidant?
Mr. Deckner,
In regards to formulating a waterproof mascara (isododecane being the main carrier), what do you consider would be THE best film former or combination of film formers to make it truly waterproof?
As far as smudge, what would you recommend?
Hello Mr. Deckner! With your consent, we would like to include your article in our research. I will be waiting for your response. Thank you.
Hi, I have a German mascara liquid that is drying and I used it to prevent the mascara charge from drying out, but its volumizing has decreased. What should I do now and what substance should I add to correct its volumizing? Thank you for your help.
Hi,im realky inlive ti your information for having volumising mascara what you suggest and for not sticking eylash to gether what is your suggested
Hi Mehrasa:
I can’t make recommendations without knowing the type of formulation you are using. If you could provide additional information, I may be able to assist.
Thank you for reading,
George
Hello dear George Decker
It was great, thank you
Thank you for sharing this with us
Hi, I am working on formulating a mascara, and have tried adjusting the percentages, but every formulation will transfer to the lashes. It works great swatching it on the back of my hand and has great feel/characteristics, but for some reason, it will not transfer to lashes. Is there something that is keeping it from sticking to the lashes? Anything you can think of that would cause this? Thanks for your your reply!
Hi, Tracey. I’m responding for George Deckner. Do you have a formula you could share? He cannot help without first seeing your formula. Thank you!
Great piece of content